Move profile fields to another field group?

Upgrading my site. I had made a few custom profile fields. I don’t want them to be on the sign-up page. I should have put them in another field group.

Is there a way after the fact to move those fields to another field group? Without losing data that members have already put in there?

Has anyone done this manually? Can you share the database query or how to do this? Or would it only get me into trouble?

EDIT: I see the custom profile fields that are not required don’t show up on the register form in 1.1.3, which is good! I think they did show up by default in the old version. I had to use javascript to hide them. Is this a change is the newer version or is something else going on?

Just had a quick look. You might be able to just get away with changing the group_id field in wp_bp_xprofile_fields to the id of the new group. The data table only seems to be looking for the id field. You can do that in phpMyAdmin. Try it locally, though, first if at all possible.